Merging PR_218 openai_rev package with new streamlit chat app

venv/lib/python3.9/site-packages/altair/examples/gapminder_bubble_plot.py

@@ -0,0 +1,18 @@
+"""
+Gapminder Bubble Plot
+=====================
+This example shows how to make a bubble plot showing the correlation between
+health and income for 187 countries in the world (modified from an example
+in Lisa Charlotte Rost's blog post `'One Chart, Twelve Charting Libraries' <http://lisacharlotterost.github.io/2016/05/17/one-chart-code/>`_.
+"""
+# category: case studies
+import altair as alt
+from vega_datasets import data
+
+source = data.gapminder_health_income.url
+
+alt.Chart(source).mark_circle().encode(
+    alt.X('income:Q', scale=alt.Scale(type='log')),
+    alt.Y('health:Q', scale=alt.Scale(zero=False)),
+    size='population:Q'
+)